The lawsuit filed in Suffolk Superior Court against Lawrence Mayor William Lantigua asks that the court order him to file his 2011 year-end campaign finance report with the Office of Campaign and Political Finance.

Ana Soto, treasurer of the Lantigua Committee, which raises and spends money in support of the mayor's candidacy, is also named in the lawsuit.

Under Massachusetts law, Lantigua and Soto are required to file reports of the Lantigua Committee with OCPF to disclose the donations made to the campaign as well as the campaign's expenditures.

"Political candidates by law are required to accurately report campaign contributions and expenditures," Coakley said. "Mayor Lantigua was ordered repeatedly to file these disclosures and pay the subsequent fine, yet has refused to do so."

The lawsuit also seeks an order compelling Lantigua to personally pay the civil late-filing penalty imposed by OCPF and not with Lantigua Committee funds.

The penalty has reached the statutory maximum of $5,000, Coakley said.